mirror of https://git.ffmpeg.org/ffmpeg.git
lavc/dvdsubenc: only check canvas size when it is actually set
Fixes #10650
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@ -376,7 +376,8 @@ static int encode_dvd_subtitles(AVCodecContext *avctx,
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x2 = vrect.x + vrect.w - 1;
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x2 = vrect.x + vrect.w - 1;
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y2 = vrect.y + vrect.h - 1;
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y2 = vrect.y + vrect.h - 1;
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if (x2 > avctx->width || y2 > avctx->height) {
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if ((avctx->width > 0 && x2 > avctx->width) ||
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(avctx->height > 0 && y2 > avctx->height)) {
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av_log(avctx, AV_LOG_ERROR, "canvas_size(%d:%d) is too small(%d:%d) for render\n",
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av_log(avctx, AV_LOG_ERROR, "canvas_size(%d:%d) is too small(%d:%d) for render\n",
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avctx->width, avctx->height, x2, y2);
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avctx->width, avctx->height, x2, y2);
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ret = AVERROR(EINVAL);
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ret = AVERROR(EINVAL);
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